Vitamin D increases calcium absorption in the intestines by activating proteins that transport calcium from the gut into the bloodstream. It also helps the kidneys reabsorb calcium so less is lost in urine. This means more of the calcium consumed – through diet or supplements – is actually available to strengthen the bones.
While getting both calcium and vitamin D can come from daily diet or proper sunlight exposure (vitamin D only), Viactiv Calcium + Vitamin D3 Chews combine calcium and Vitamin D into tasty soft chews that helps make it easy to supplement these needs daily.
Sources:
National Institutes of Health – Vitamin D Fact Sheet https://ods.od.nih.gov/factsheets/VitaminD-Consumer Mayo Clinic – Calcium and Bone Health
Harvard T.H. Chan School of Public Health – Calcium https://www.hsph.harvard.edu/nutritionsource/calcium/ NIH – Calcium Fact Sheet
